On Sun, 2010-03-14 at 07:01 +1000, Dave Airlie wrote: > > The big issue we have with resizing the buffer is userspace mmaps of the fbdev > device, and invalidation. > Previous thread of unresolvedness is here. > http://www.mail-archive.com/dri-devel@lists.sourceforge.net/msg41878.html
Actually AFAIR (and reading through it again seems to confirm this) userspace mappings should be fully handled by the last patch series I posted back then[0]. The problem was that the struct fb_ops hooks may be called by the kernel from pretty much any context, and neither I nor Thomas was sure how to handle the TTM locking given that. Maybe James has ideas for this given his better familiarity with fbdev internals. [0] Though that was really only about making it possible to unpin the fbcon BO while it isn't being displayed, resizing it might involve other issues I'm not aware of. -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
